Contents expeller for collapsible tube
CA 2260375 C · Owner: Picard, Jacques · Inventors: Picard, Jacques
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reusable contents expeller for collapsible tube which prevents said contents from reverting back into said collapsible tube and that can easily be removed and installed on another tube without the need to firstly insert it through the base of the collapsible tube said, expeller is comprised of an oblong element with two extremities. Said oblong element has a place where it is thin at its thickness and across its breadth so that said place is flexibly pliable to allow said oblong element to fold upon itself to the point where the two said extremities join, thus forming two pressure plates. Said pressure plates are further held and secured together by the use of a hinged flap contiguous and …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 28, 1999 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.